|Date|Event|Headline Act(s)|Supporting Act(s)|
|---|---|---|---|
|July 2002|Move Festival|David Bowie, New Order, Green Day||
|September 2002||Oasis|Richard Ashcroft|
|July 2003|Move Festival|R.E.M.|John Squire, Badly Drawn Boy, Idlewild|
|July 2004|Move Festival|The Cure, Morrissey||
|June 2006||Richard Ashcroft|Razorlight|
|June 2006||Foo Fighters|The Strokes, Angels & Airwaves, The Subways, Eagles of Death Metal|
|July 2007|'Mini-festival'|Arctic Monkeys|Supergrass, The Coral, The Parrots, Amy Winehouse|
|June 2008|World Tour|Radiohead|n/a|
|August 2008|Accelerate Tour|R.E.M.|n/a|
|June 2009|Circus Tour|Take That|The Script, Lady Gaga|
|September 2009|Suicide Tour|Coldplay|Jay-Z|
|June 2010||Green Day|Frank Turner|
|September 2010||Muse|Editors, Band of Skulls, Pulled Apart by Horses|
|June 2011||Bon Jovi||
|June 2011||Kings Of Leon|White Lies, Mona|

Question: how many performances occurred in the month of june?
Answer: 17